Drill bit



FIG. 1 is an end view of the design;

FIG. 2 is a side view of the design of FIG. 1;

FIG. 3 is a first perspective view of the design of FIG. 1; and,

FIG. 4 is a second perspective view of the design of FIG. 1.

The broken lines in the drawings depict portions of the drill bit that form no part of the claimed design. 

CLAIM The ornamental design for a drill bit, as shown. 